Draw-bar for railway-cars



' 2 Sheets-Sheet l.

(No Model.)

W T lVAN BORN DRAW BAR PoR RAILWAY CARS.

No. 606,105. PatentedJune 21,1898.-

Emwkn 4/ Www/0%@ 2 Sheets-Sheet 2.

(No Model.)

W T VAN` BORN DRAW BAR FOR RAILWAYl CARS.

NoP 606,105. Patented-June 21,1898.

UNT-Tan STATES PATENT @Trient IVILLIAM T. VAN DORN, OF CHICAGO,ILLINOIS.

DRAW-BAR FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters 4:PatentANO. 606,105, dated J une21, 1898.

s Application filed J'anuaryll, 1898. Serial No. 666,705. (No model Toall whom t may concern:

Be it known that I, WILLIAM T. VAN Donn, a citizen of the United Statesof America, residing in the city of Chicago, in the county of Cook, inthe State otlllinois, have invented certain new and useful Improvementsvin Draw-Bars for Railway-Cars, of which the following is aspecification. v v c My invention has relation to improvements indraw-bars for railway-cars and the obj ect is to provide animproveddraft appliance of.

the kind named and for the purpose intended which is simple inconstruction, strong'and durable in use, and readily'and convenientlyapplied to the car. f rlhe inventionconsists in the novel con; structionand combination of parts, as will be hereinafter descrihed,'andparticularly as will be pointed out inthe'claims.

I have fully and clearly illustrated .the in-l vention in theaccompanying drawings, where- Ill- Figure l is a perspective View of thedraw-` bar held in a cylindrical buffer-sleeve having a fasteningbracket or casting rigid therewith. Fig. 2 is a central verticallongitudinal section through the respective elements or parts. Fig. 3 isa vertical transverse section on the line 3 3 of Fig. l. Fig; fi is across-section through the stem of the draw-bar, showing an interiorwrought iron or steel central portion fitted therein. Fig. 5 is aperspective view of the draw-,bar held in a buffer-sleeve secured to abracket and turning therein on a pivotal support. Fig. G is a centralvertical longitudinal section on the line oc c of Fig. 7. Fig. 7 is avertical transverse section on the line y y of Fig. v6.

A designates a strong buffer-sleeve, made of malleable or steel casting,and, as indicated in Figs. l, 2, and 3 of the drawings, has castintegral therewith a bracket or casting B,having a i'lat and plane upperface l adapted to iit against and be secured to a carrying-bar 14, asshown-'inFig 2. The buffer-sleeve- A is formed with interior annularflanges 3 3X, having their inner edges shaped to form angular openings,4 4X, adapted to receive and hold the stem of the draw-bar, which isslidingly fit-ted therein. The interior of the buffer-sleeve A betweenthe annular iianges is larger than the stem of the draw-bar, which movestherethrough free Afrom contact with the surface of the interior, andthe openings 4; 1i?? are made larger vertically than the verticalthickness of the draw-bar, so that the draw-bar may have a limitedvertical play or movement in its seat through the buffersleeve withoutdisturbing the sleeve or tending to lift the carrying-bar which carriesit.

- Thebracket I3 is made of cast or malleable steel and iscast'hollow,with its ends extended in opposite directions beyond theends of the buffer-sleeve A, substantially as shown,which extensions arebraced by central tapering ilanges 5. v

C designates thev draw-bar, made of malleable or steel casting, of suchlength and dimensions as to adapt it to the usages and work to which itmay be intended. The drawhea-d 6 is cast continuously and integral withthe stem, and att-he proper point on the stem of the draw-bar is formedan annular collar 7 to serve as a stop or stay for the front or bufferspring to abut against, and adjacent to the end or `tail of the draw-barstem is formed a keyway 8, in which a strong key 9 is tted, as shown inthe drawings. On the draw-bar, between the annular collar 7 and thefront face of the buffer-sleeve or the interior annular flange, isfitted and arranged a strong spiral buier-spring l0 to receive or takethe forcevof impacts iniiicted on thedraw-head, and on the stem, at th'erear portion thereof, between the key 9 and the reariface of thebuffer-sleeve or the interior annular flange, is arranged a strongspiral spring 1l, which serves as a cushion or relief spring against theforce of which the pulling force on the draw-bar operates. A 'washer 12is fitted between the key 9 and the spring ll, against which the springll bears at, that end.I The stem of the draw-bar is formed angular incross-section in order that it shall not turn in its seat in thebuffer-sleeve and also that it will pull straight'and swing on ahorizont-al plane without turning in the sleeve.

For the ordinary usages the draw-bar is cast hollow throughout, as shownin' Fig. 2 of the drawings; but if additional strength is desired oryrequired a wrought ironor steel bar 13 may be rigidly iitted in thebore, as indicated in Fig. 4 of the drawings, in which case the key slotor way is made through the IOO ' to the bracket.

wrought bar also; andas another means of strengthening the draw-barinternal radiallydirected ribs fr are formed therein, extending thelength of the bore, as indicated in Figs. G and 7 of the drawings.

The bracket B is strongly secured to a bar or plate Il of such length asmay be desired, one end of the said bar bein g pivotall ysecu red to theking-pin of the car or to other such pin placed in a suitable point onthe car, the connection being made through a pin or bolt hole l5 in theend ofthe bar let, so that the bar will move on a horizontal plane aboutits pivotal connection. The plate or bar 14 is slidingly supported atits free or front end on a cross-bar IG, secured to the car by anyproper means, and may also be similarly supported at the rearportion, asby a cross-bar 17 ,and the front end of the draw-bar is also supportedon a cross-bar 1S, on which it slides in its lateral movements inturning curves or other irregularities in the track.

In Figs. 5, 6, and 7 of the drawings the invention is illustrated asapplied to a pivotallysupported buffer-sleeve turning on averticallydisposed bolt uniting the bufter-sleeve The draw-bar isidentical in construction with that hereinbeore specified; but theinterior annular flanges in the bui'lersleeve are disposed toward themiddle of the bufler-sleeve and at such distance apart as to becontiguous to the sides of the head of the pivot-bolt a, which is letthrough the butfer-sleeve by an opening b in the under side of thesleeve, as indicated in the drawings; and the buffer-sleeve A and thebracket B interengage by means of vertical circular flanges c c' on theupper face of the buttersleeve, which are engaged by downward-directedcircular lflanges d d', setting in the seats formed by the circulariianges on the top of the buffer-sleeve- The bracket B in thisconstruction is secured directly and rigidly to a proper support on thecar, and the buiier-sleeve is held in pivotal connection therewith bythe bolt a, the bufier-sleeve being guided and additionally strengthenedin' the connection by the interengaging circular flanges; but to furthermaintain the parts in their operative connection a metal Stringer orsupport c is secured to any suitable part of the ear across and underthe buler-sleeve and formed with a circular rib f, which engages in acounterpart circular seat g on the bottom of the buffer-sleeve, thusholding the sleeve at this point in direct line with the axial bolt onwhich it turns.

' By making the draw-'bar hollow it can be made larger in diameter, thusincreasing its strength without materially increasing its weight, and bythe use of a bull'ersleeve of the construction described the draw-barmay be made shorter than usual, and thus a sav* ing of materialellected. The whole construction is particularly well adapted to service where thevdraw-bar and coupler must be carried considerably belowthe iloor of the car, as in elevated railways; but it may be appliedwith advantage to any kind of service where a simple and el'icientassemblage of elements is desired. y

To assemble the parts after the b uffeisleeve has been secured in placeon the car, all that is necessary is to first slip the front or bufferspring on the stem of the draw-bar and move it forward until it restsagainst the annular collar. Then the draw-bar is passed through thebuffer-sleeve. Then the ielietspring is arranged on the projecting stemportion of the draw-bar, the washer is placed in position, and then bypushing the draw-bar inward to compress the buffer-spring the key ispassed into the way and the device is ready i'or operation.

lVhat I claim as my invention isl. In a draft appliance for railwaycars,a combined bracket and buffer-sleeve integral with each other, asuitable su pporting-bar secured to the bracket and pivotally connectedto the ear at one'end to move on a horizontal plane, a draw-bar havingits stem projected through the butter-sleeve, and formed with an annularcollar, a buier-sprin g on the drawbar between the cellar and the irontend of the bulensleeve, a reliei-sprin g on the stein between the rearface of the buffer-sleeve and the end of the draw-bar stem, and a keyprojected through the rear end ci the draw-bar stem.

2. In a draft appliance for railway-cars, a combined bracket andbuffer-sleeve, the bu E fer-sleeve part being substantially cylindricaland formed with internal annular flanges having angular openings, asuitable pivotallysecured support to which the bracket is secured andvmovable therewith, a hollow drawbar projected through the buftersleeveand having a limited vertical play in the openings therein, and formedwith an annular collar, a spring on the drawbar between the buffercollarand the front interior flange of the buffer-sleeve, a spring on the rearportion of the draw-bar stein between the rearinternal Il ange oi' thebuffer-sleeve and the end of the stem, and a key through the rear end otthe drawbar.

In combination with a cylindrical buffersleeve secured and supported tomove on a pivotal support on a horizontal plane, of a draw-bar projectedthrough the buffer-sleeve and formed with an annular birding-collar, abuffer-spring on the stein of the draw-bar between said annular collarand the buttersleeve, a spring on the stein of the draw-bar between ltherearof the buffer-sleevo and the rear end of the draw-bar, and aretaining means at the end of the draw-bar stem.

l. In a draft appliance for railway-cars, the combination of asupportiiig-bracket and a butter-sleeve pivotally connected together, adraw-bar slidin gl y projected through the bul.- fcr-sleeve, springs onVthe draw-bar at oppo site ends of the said sleeve, and a key to holdthe springs and draw-bar in relative position.

IOO

IIO

5. In a draft appliance for railway-curs, the combination of Lsuitably-supported buffersleeve turningl on a vertical axis, a draw-burprojected through the sleeve and having 2L limited Vertical playtherein, springs on the draw-bar on opposite ends of the buffer-sleevewith their ends hearing against the ends thereof, and menus on thedraw-bar stem to hold the otherends ofthe springsin operative gosition.

In testimony whereof I affix my signature in presence of two Witnesses.

IVILLIAM T. VAN DORN. IVitnesses:

A. G. IIEYLMUN, ALFRED S. WILLsoN.

